Does medicine make patients feel better or worse? We are getting better at predicting this from people’s DNA profiles, says Professor Jesse Swen. ‘It never fails to fascinate me how one DNA base pair can have such a huge effect on treatment with medication and the outcome.’

Leiden Professor of Maths Frans van Schooten Jnr. (1615-1660) and his wife Margrieta were painted by Rembrandt. This is the claim made by mathematician and art historian Johan Zwakenberg in his recently published article in the 2018 Leiden Yearbook. Leiden art historians are not completely convinced…

Armed with sunglasses, a thick layer of sunscreen and several bottles of water, over 3,300 students have arrived in Leiden for their introduction week. The start of the 55th EL CID happened to be on the hottest day of the year.

‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…

A discount on textbooks is always welcome. But for these students joining a study association has meant much more than that alone.

With a grant from the Digital Infrastructure Insights Fund D//F, John Boy and members of the d12n research cluster will explore new ways critical technologists try to align their work with digital technology with the political goal of defending the public interest.

He was a popular face in the Leiden student world and even developed his own merchandise, but all good things come to an end. After seven years, community support officer Dennis Perdok (49) is leaving this role. Last week he bid farewell to the police and to his job in Leiden’s city centre.

Over 30.000 pages of new material have been added to the online collection of unofficial poetry publications from China in the Leiden Digital Collections. Produced outside the system, these journals and books are hugely influential yet very hard to find. To address this paradox, Leiden University Libraries…

Leiden health psychologist Liesbeth Van Vliet receives recognition for her research on doctor-patient communication and its influence on quality of healthcare. Van Vliet has been awarded one of four Heineken Young Scientists Award 2022 for promising young researchers working in the Netherlands.

Leiden University teachers that have requested course reserves for students at Leiden University Libraries (UBL), or have made books non-lendable for educational purposes, now have four ways to offer these materials to students at home.

Leiden University’s Rector Magnificus, Professor Hester Bijl, has been reappointed for a second term by the Board of Governors.

Leiden University Libraries (UBL) signed the manifesto of the Dutch Digital Heritage Network (NDE) this November, during Digital Heritage Month, thereby joining the network. The manifesto calls on archives, libraries, museums, and other cultural institutions to make their digital collections more visible,…

The collections of Leiden University Libraries (UBL) not only hold academic material, but also many novels, collections of poetry, non-fiction works and even cookbooks. Is your summer reading list still unfinished, take a look at the list below and borrow your book through the UBL catalogue.

The Leiden University Libraries (UBL) catalogue contains millions of (e-)books, (e-)journals, manuscripts, letters, and other materials available at the UBL.

Open educational resources, better known as OER, are freely accessible, reusable learning materials in various forms. OER can be extremely valuable for both teachers and students. On this page, we will discuss what OER entails, what their advantages and disadvantages are, what restrictions may apply…

How does a Leiden alumnus end up working at the New York Metropolitan Museum of Art (The Met)? In the case of Daniëlle Kisluk-Grosheide, it was partly down to chance, luck, fate. But that was preceded by a unique degree in decorative arts in Leiden.

Jurist Gineke Wiggers wants to predict the expected impact of legal articles. Carel Stolker, Rector of the University and, like Wiggers, a legal specialist, is enthusiastic about the research. ‘A big data project like this will help us establish the effect of our work on society.’

Leiden University has an active open science community. Open science means transparency in all phases of research by precisely documenting every step of the way and making this publicly available. ‘It’s time to be open,’ say psychologists Anna van ’t Veer and Zsuzsika Sjoerds. There is increasing awareness…

From experimental essays to comfort reads, and from manga to court literature in verse: Japanese literature has it all.

This Subject Guide is designed to support students of Korean studies at Leiden University in their research process. For every step of the research process, this guide introduces a number of tips and recommended resources. You can find several sub-guides and contacts in the 'quick links' in the tab…

Overview of databases, reference works and websites for research in Middle Eastern Studies

Wat zie jij als je verderkijkt? Hoe ziet studeren aan de Universiteit Leiden in 2075 eruit? We nodigen je uit om mee te doen met Verderkijkers.

To mark the university’s 450th anniversary, the Leiden Discoveries science route has been updated and was relaunched on the Night of Discoveries. New signs in town and a revamped website tell Leiden residents and visitors the stories of the city’s spectacular discoveries.

A collection of uncatalogued books from the Middle East is now available through the Leiden University Libraries’ (UBL) catalogue. The collection contains over 12,000 books mainly written in Arabic, but also in multiple other languages from the Middle East, North Africa and Central Asia, including Persian,…

They might not have had Twitter, but they did have brochures (pamphlets), the Roman Catholics and ‘modern’ Protestants between 1840 and 1870. In these, they launched a passionate attack on each other’s ideas. Ineke Smit has catalogued the brochures from the collection of the University Library and outlined…

Cardiovascular diseases are the leading cause of death across the world. Professor Johan Kuiper of Leiden University carries out research to develop a vaccine for arteriosclerosis, which is the main cause of cardiovascular diseases. With the aid of a European research grant of six million euros he is…

At the first Climate Café of 2025, we celebrated the one-year anniversary of The Hague Climate Agreement and reflected together on the successes and opportunities for the future.

Dutch influencers like Romy Boomsma and Nina Pierson have a huge following on Instagram and are increasingly sharing book tips there. Researcher Aafje de Roest wants to find out more about the reading culture they are promoting and its effect on the reading habits of their mostly young female follow…

They never cross our minds until, that is, they become damaged and then they’re a huge problem: our sewers. Their maintenance could be much faster and more accurate, PhD candidate Dirk Meijer has discovered. Algorithms are also proving to be a godsend deep underground.

The Leiden University Visual Ethnography collection has been added to Alexander Street Press, an educational streaming video service. The master’s specialization Visual Ethnography has supported many talented individuals to produce inspiring films. About 70 master’s thesis films of the past 8 years…

Amid rising polarisation and discrimination, lawyer and human rights activist Lilian Gonçalves-Ho Kang You wants to show in her Cleveringa Lecture on 26 November how dangerous exclusion is.

Leiden University celebrates its 444th anniversary in 2019, and a special age requires a special logo. The logo for the celebration was designed by Clara Lezla, a student at the Royal Academy of Art The Hague.

Leiden University Libraries has made a large number of unofficial poetry journals from China accessible online in its Digital Collections. This opens up thousands of pages from an internationally unique collection of unofficial Chinese poetry for teaching, research, and the general public, including…

Antariksa (Indonesia) is a researcher and co-founding member of KUNCI Cultural Studies Center, Yogyakarta, Indonesia. He is the 2017 laureate of Global South(s) du Collège d'études mondiales/Fondation Maison des sciences de l'homme fellowship, Paris, and currently Associate Fellow of the Institute of…

Close to twenty thousand pages of new material have been added to the online collection of unofficial poetry journals from China in the Leiden Digital Collections. Produced “outside the system,” these journals are hugely influential yet very hard to find. To address this paradox, Leiden University Libraries…

Students from the Royal Academy of Art The Hague (KABK) designed the 450 lustrum logo.

Goldband, Skrillex, Róisín Murphy and... quantum: the latter may not be a band but is part of the Lowlands line-up nonetheless. Scientists from Leiden University are using the festival for research on the very smallest particles.

As Scaliger professor, Erik Kwakkel is responsible for the academic context of the complete Special Collections of the Leiden University Library. His inaugural lecture on 15 May will focus mainly on the section closest to his heart: Medieval books.

The Dutch universities are conducting a joint campaign to promote open access: free access to academic and scientific publications. Many Leiden researchers support open access. Given that it involves a shift in the financing from the reader to the author, they point out the need for effective agreements…

While the United States continues to carry out drone strikes, and China conducts large-scale cyber and information operations, Ukrainian and Russian soldiers live in trenches, and NATO sends tanks to the Donbas front to force a breakthrough. Has war changed dramatically in recent decades as a result…

Every year on 26 November Leiden University commemorates the protest speech given by Professor Cleveringa against the Nazis. At least 663 students, staff and alumni of the University lost their lives during the Second World War, yet little was known about these victims. PhD candidate Adriënne Baars…

The Caribbean as we know it today is fundamentally a product of colonial activity and globalisation. Practically everyone that inhabits the Caribbean has ancestors from different continents due to colonial activity, which profoundly affects the area to this day. Caribbean writers, both in the Caribbean…

Dutch troops, judges and politicians collectively condoned and concealed the systematic use of extreme violence during the Indonesian War of Independence. Historians have now shown how this could happen. ‘It was scandal management rather than prevention,’ says Leiden historian and research leader Gert…

Writers are not just storytellers: with their novels, tales and critiques they broaden the social imagination, reflect on societal developments and sometimes put new themes on the map. This can easily lead to a conflict because writers and literati often think very differently about issues such as…

The airspace had almost closed last year as Leiden students and staff rushed to leave the Netherlands Institute Morocco (NIMAR). How is this Leiden institute in Rabat doing over a year later? ‘Luckily we’d done a crisis exercise a few months before. Everyone managed leave the country in time.’

The Gouy-Chapman theory describes what happens near an electrode when it is in contact with a salt solution, but this description does not match reality. Researcher Kasinath Ojha, assistant professor Katharina Doblhoff-Dier and professor Marc Koper present a new version. ‘The next generation of textbooks…

Our banking, DigiD and sensitive medical data: what if our entire digital infrastructure can no longer be trusted? Jelle Don has this question permanently in mind as he goes about his research. And that is no bad thing because without new digital security measures, our society will be extremely vuln…

Former President Kgalema Motlanthe of South Africa gave a public lecture on Campus The Hague on 7 July. His story was about the economic transformation of Africa.

The law and Artificial Intelligence (AI) applications need to be better aligned to ensure our personal data and privacy are protected. PhD candidate Andreas Häuselmann can see opportunities with AI, but dangers if this does not happen.

Who can pitch a book so well that everyone wants to read it? These are the winners of the 2025 Alternative Reading List Awards.